Alert archive / Florida / Red Flag Warnings in 2007

Red Flag Warning 7, NWS Melbourne, FL

February 7, 20074 counties in Florida

NWS Melbourne, FL issued this red flag warning at Feb 7, 2007, 3:00 AM EST for 4 counties in Florida. It took effect at Feb 7, 2007, 11:00 AM EST. It was in force for 7 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Feb 7, 2007, 3:00 AM EST (08:00 UTC)
In effect from
Feb 7, 2007, 11:00 AM EST
Expired
Feb 7, 2007, 6:00 PM EST
In force
7 hr
Issued by
NWS Melbourne, FL

Counties Lake County, FL, Orange County, FL, Seminole County, FL, Volusia County, FL

The radar

The Melbourne radar (KMLB), 100 km from the middle of the area, began a volume at 08:01 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 00:00Z, 8.0 hours before the alert went out and 90 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Cape Canaveral, FL at 00:00Z on 2007-02-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cape Canaveral, FL at 00:00Z on 2007-02-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 91 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1383 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
91 m²/s²
0-3 km storm-relative helicity
187 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WWUS82 KMLB 070800
RFWMLB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
300 AM EST WED FEB 7 2007

...A RED FLAG WARNING IS IN EFFECT FROM 11 AM TO 6 PM TODAY FOR
VOLUSIA...LAKE...SEMINOLE AND ORANGE COUNTIES FOR LONG DURATIONS
OF LOW RELATIVE HUMIDITY...

FLZ041-044>046-141-144-072300-
/O.NEW.KMLB.FW.W.0007.070207T1600Z-070207T2300Z/
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-COASTAL VOLUSIA-
SOUTHERN LAKE-
300 AM EST WED FEB 7 2007

...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 6 PM EST
THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 6 PM EST
THIS AFTERNOON FOR LONG DURATION OF LOW RELATIVE HUMIDITY.

A SURFACE RIDGE OF HIGH PRESSURE WILL SETTLE ACROSS SOUTHERN 
PORTIONS OF EAST CENTRAL FLORIDA THIS AFTERNOON WITH LOW LEVEL
WESTERLY FLOW DEVELOPING ACROSS LAKE...SEMINOLE...ORANGE AND
VOLUSIA COUNTIES. DRY AIR IN THE LOWER LEVELS OF THE ATMOSPHERE
AND WEST WINDS WINDS TO AROUND 10 MPH WILL CONTRIBUTE TO A FIRE
WEATHER THREAT. MIN RHS ARE EXPECTED TO DROP TO BETWEEN 28 AND 33
PERCENT FOR 4 TO 6 HOURS THIS AFTERNOON.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS...
...ARE EITHER OCCURRING NOW...OR ARE FORECAST TO OCCUR IN THE
NEXT 24 HOURS.

$$

VOLKMER

Nearby

Red Flag Warnings in Florida, 2007Every red flag warning in 2007

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.